#E55A28
Closest named color: Deep Orange (#DC4D01). oklch(64.2% 0.184 38.7), rgb(229, 90, 40).
Aa
Black text reads best on this color (5.82:1).
About this color
#E55A28 is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.184 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.033 away. Black text reads best on it, at 5.82:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #E55A28 |
| RGB | rgb(229, 90, 40) |
| HSL | hsl(16, 78%, 53%) |
| OKLCH | oklch(64.2% 0.184 38.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #E55A28 | 3.60:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #E55A28 | 5.82:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #E55A28 text on white | 3.60:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #E55A28 text on black | 5.82:1 | AA | Lc -39.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DD
oklch(93.5% 0.026 38.5)
-
Step 200
200
#F8CFC1
oklch(88.6% 0.05 39.7)
-
Step 300
300
#F4AD96
oklch(80.9% 0.09 38.7)
-
Step 400
400
#EB7E5A
oklch(70.8% 0.144 38.9)
-
Step 500
500 (this color)
#E55A28
oklch(64.2% 0.184 38.7)
-
Step 600
600
#C53F00
oklch(55.6% 0.18 38.6)
-
Step 700
700
#A73400
oklch(49.2% 0.159 38.6)
-
Step 800
800
#8A2A00
oklch(42.8% 0.138 38.8)
-
Step 900
900
#732202
oklch(37.6% 0.12 38.5)
-
Step 950
950
#441606
oklch(27.1% 0.076 38.9)
#E55A28 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #827320 | 0.182 |
| Deuteranopia (no green cones) | #A49222 | 0.165 |
| Tritanopia (no blue cones) | #FC3650 | 0.081 |
| Achromatopsia (no color) | #878787 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E55A28
#E55A28
oklch(64.2% 0.184 38.7)
- #009DBC
#009DBC
oklch(64.3% 0.116 218.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #E55A28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.033
- Orange Pant #FB5607 ΔE 0.041
- Chocolate #D2691E ΔE 0.045
- Pale Red #D9544D ΔE 0.047
- Blood Orange #FE4B03 ΔE 0.047
- Burnt Sienna #E76F51 ΔE 0.047
- Orangey Red #FA4224 ΔE 0.048
- Rusty Orange #CD5909 ΔE 0.049
Use #E55A28 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.